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From: "Don" <g@crcomp.net>
Newsgroups: sci.electronics.design
Subject: Re: Predictive failures
Date: Tue, 16 Apr 2024 17:15:31 -0000 (UTC)
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Edward Rawde wrote:
> Don wrote:
>> Don Y wrote:
>>> Is there a general rule of thumb for signalling the likelihood of
>>> an "imminent" (for some value of "imminent") hardware failure?
>>>
>>> I suspect most would involve *relative* changes that would be
>>> suggestive of changing conditions in the components (and not
>>> directly related to environmental influences).
>>>
>>> So, perhaps, a good strategy is to just "watch" everything and
>>> notice the sorts of changes you "typically" encounter in the hope
>>> that something of greater magnitude would be a harbinger...
>>
>> A singular speculative spitball - the capacitive marker:
>>
>>    In-situ Prognostic Method of Power MOSFET Based on Miller Effect
>>
>>    ... This paper presents a new in-situ prognosis method for
>>    MOSFET based on miller effect. According to the theory
>>    analysis, simulation and experiment results, the miller
>>    platform voltage is identified as a new degradation
>>    precursor ...
>>
>>    (10.1109/PHM.2017.8079139)
>
> Very interesting but are there any products out there which make use of this
> or other prognostic methods to provide information on remaining useful life?

Perhaps this popular application "rings a bell"?

    Battery and System Health Monitoring of Battery-Powered Smart Flow
    Meters Reference Design

    <https://www.ti.com/lit/ug/tidudo5a/tidudo5a.pdf>

Danke,

-- 
Don, KB7RPU, https://www.qsl.net/kb7rpu
There was a young lady named Bright Whose speed was far faster than light;
She set out one day In a relative way And returned on the previous night.